摘要:这3名患者在取得稳定的分子学缓解之后(融合基因转阴PCRU)停用达沙替尼。1名患者复发,另外两名患者在1年后仍保持了PCRU。以前说过,达沙替尼确实可以提高免疫力,希望今后能获得更多的相关研究报告。
' P, P+ z; `4 D4 J 关于这个研究值得注意的是,这三名患者都是服用格列卫失败后转用达沙替尼的,也即他们对格列卫是耐药的。这与法国的格列卫停药研究又有所不同,那个研究中的患者都是对格列卫反应良好的。希望医生们能扩大研究长期观察,看看停用达沙替尼是否能持久不复发。
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作者:来自澳大利亚
. I& T1 j6 V1 S来源:Haematologica. 2011.8.9.
' D' ~9 v/ r7 Z4 e3 f+ _Dear Group,8 U5 \) v% v- b* V( v* K
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML7 Q- h* l! @# H
therapies. Here is a report from Australia on 3 patients who went off Sprycel0 ?3 {3 ]. s+ R
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients. z: u9 `+ F5 O% x
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel' v% K: r2 F0 q# ?" o9 \
does spike up the immune system so I hope more reports come out on this issue.
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2 w' Y) ^8 y( w/ r% A4 \. BThe remarkable news about Sprycel cessation is that all 3 patients had failed
& n4 S' j0 Y zGleevec and Sprycel was their second TKI so they had resistant disease. This is
1 Y7 k& @2 y1 y! idifferent from the stopping Gleevec trial in France which only targets patients* k$ }# i" r/ O! u- G$ b$ M
who have done well on Gleevec.
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Hopefully, the doctors will report on a larger study and long-term to see if the3 }9 C" S+ K; @; U1 y g. {' j+ K
response off Sprycel is sustained.
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- U& b) g" v; h- PBest Wishes,
2 B- y+ ?: Q' e$ p+ TAnjana9 G ], W/ ^1 j7 H2 c
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Haematologica. 2011 Aug 9. [Epub ahead of print]
# W) N1 N: K0 r! lDurable complete molecular remission of chronic myeloid leukemia following
0 O. O2 L$ P! H. p: \4 X2 X. Q4 I( jdasatinib cessation, despite adverse disease features.) H% S2 Y4 e9 ~% U
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.: g/ z( R5 [, B4 t2 o' ]
Source: U' r7 d: ~1 H* P# \
Adelaide, Australia;; M2 W: L0 j; O. |+ f! h
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Abstract
# I9 M6 @9 `5 p3 u5 E( KPatients with chronic myeloid leukemia, treated with imatinib, who have a
% W9 I8 \% f! Odurable complete molecular response might remain in CMR after stopping
& ` P) ?$ D9 {8 E$ }0 c, ttreatment. Previous reports of patients stopping treatment in complete molecular
3 U8 _6 S: c; ^response have included only patients with a good response to imatinib. We( e! g3 V. L+ @* L* D* N
describe three patients with stable complete molecular response on dasatinib4 H0 w8 y5 [# H* \
treatment following imatinib failure. Two of the three patients remain in" \' [6 X# d9 y
complete molecular response more than 12 months after stopping dasatinib. In& e# m! \+ z% U! b+ k' s4 e) S9 @
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
0 ^% z& O5 T6 s2 t/ \( H x# yshow that the leukemic clone remains detectable, as we have previously shown in
7 C' ]. D; N/ P: O/ S, V7 vimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
- o' x* m2 n5 ^. A' _% fthe emergence of clonal T cell populations, were observed both in one patient
7 ^& }7 i" g4 wwho relapsed and in one patient in remission. Our results suggest that the
; g3 q5 P. ~8 y" u% s8 m6 }1 V) Jcharacteristics of complete molecular response on dasatinib treatment may be" d+ x6 C' h, y4 k; E5 m5 K* D
similar to that achieved with imatinib, at least in patients with adverse
u5 r9 Z& I$ ~$ P8 U7 C. Adisease features.! W- }% t1 D1 p9 o3 r! ~
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